Pen



FIG. 1 is a perspective view of pen showing my new design;

FIG. 2 is a top plan view of the pen of FIG. 1;

FIG. 3 is a side elevation view of the pen of FIG. 1;

FIG. 4 is bottom plan view of the pen of FIG. 1;

FIG. 5 is a front elevation view of the pen of FIG. 1;

FIG. 6 is a rear elevation view of the pen of FIG. 1;

FIG. 7 is a perspective view of an alternate embodiment of a pen;

FIG. 8 is a top plan view of the pen of FIG. 7;

FIG. 9 is a side elevation view of the pen of FIG. 7;

FIG. 10 is a bottom plan view of the pen of FIG. 7;

FIG. 11 is a front elevation view of the pen of FIG. 7; and,

FIG. 12 is a rear elevation view of the pen of FIG. 7. 

The ornamental design for a pen, as shown and described. 